نتایج جستجو برای: 42 d period

تعداد نتایج: 1128042  

Journal: :Journal of animal science 2006
J L Amundson T L Mader R J Rasby Q S Hu

Ten years of calving records were examined from Bos taurus crossbred cows (mean of 182 cows/yr) to quantify the effects of environmental conditions during the breeding season on pregnancy rate. Estimated breeding dates were determined by subtracting 283 d from the calving date. Relationships were determined between the proportion of cows bred during the periods from the beginning of the breedin...

2013
Rasool Sadjadian Hesam A. Seifi Mehrdad Mohri Abbas Ali Naserian Nima Farzaneh

This trial evaluated the effects of dietary supplementation with monensin sodium on dry matter intake, metabolic parameters and milk yield and milk composition of dairy Saanen goats in the periparturient period. Twelve Saanen pregnant dairy goats were assigned to a treatment and a control group. Saanen goats were fed monensin as its 10% sodium salt in the amount of 33 mg/kg of total dry matter ...

Journal: :پژوهش های علوم دامی ایران 0
صفا ژاله ابوالقاسم گلیان احمد حسن آبادی سید علی میرقلنج

an experiment was conducted to study the effects of dietary levels of extruded full fat soybean (effsb) on performance, blood metabolites and intestinal morphology of broiler chickens. a batch of ffsb was wet extruded at 155 °c, 15 seconds to provide the extruded full fat soybean (effsb) sample. one hundred and forty four d-old ross 308 male broiler chicks were divided into 12 groups with 12 bi...

2010
Gang Jia Ying Wang Qiuhong Deng

Experiments were conducted to determine the digestible lysine (DLys) requirement of Liuzhou Mahua broilers from 1 to 21 d and from 22 to 42 d of age. Monofactorial design was adopted in this study. 1200 one-day-old healthy broiler chicks were divided randomly and evenly into five treatments, and were all fed with isoenergetic diet (with ME of 3.0 Mcal/kg) but with graded levels of DLys: 1.22%, ...

Journal: :Ruminants 2021

The objective of this study was to evaluate the growth performance responses and liver trace mineral status newly weaned steer calves offered a low-moisture, molasses-based block “stress tub” containing organic sources minerals Saccharomyces cerevisiae fermentation culture during first 21-d 42-d feedlot receiving phase. Newly weaned, single source Charolais x Angus (n = 46; body weight [BW] 240...

Journal: :Ruminants 2021

The objective of this study was to evaluate the growth performance responses and liver trace mineral status newly weaned steer calves offered a low-moisture, molasses-based block “stress tub” containing organic sources minerals Saccharomyces cerevisiae fermentation culture during first 21-d 42-d feedlot receiving phase. Newly weaned, single source Charolais x Angus (n = 46; body weight [BW] 240...

B. Hosseintabar Ghasemabad P. Baghban Kanani, P. Farhoomand S. Azimi Youvalari

The aim of this study was to evaluate the effects of copper (Cu) sulfate (0, 125 and 250 mg/kg), arginine (Arg) supplements (0, 0.1 and 0.2%) and glucosinolate content on performance and carcass traits in broiler chickens fed with canola meal based diet. During a three-week experimental period (22-42 d), 405 male broilers were used in completely randomized design with a 3 × 3 factorial experime...

Journal: :Journal of animal science 2003
G C Shurson G W Lubal J Crenshaw C R Hamilton R L Fisher D D Koehler M H Whitney

A collaborative study was conducted to evaluate factors related to determining optimal feeding and management programs for increasing net returns from marketing cull sows. A total of 269 multiparous sows averaging 192 kg of body weight were weaned, moved to individual gestation crates, and assigned to one of eight treatment combinations in a 2 x 2 x 2 factorial arrangement for a 42-d postweanin...

Journal: Poultry Science Journal 2017
Esmaeilipour O Mazhari M Mirmahmoudi R, Raeisi-Zeydabad S

This experiment was carried out to study the effects of Coenzyme Q10 (CoQ10) and vitamin C (VC) on growth performance and blood biochemistry in broiler chickens under heat stress conditions. One of three levels of CoQ10 (0, 20, and 40 mg/kg of diet) and one of two levels of VC (0 and 250 mg/kg of diet) were supplemented to diets of chicks (from 1-42 d of age) in a 3 × 2 factorial arrangement. E...

Journal: :journal of livestock science and technologies 2014
m. eslami m. salarmoini s. tasharrofi

the aim of this study was to investigate the effects of in ovo injections of albumin, ami-no acid and dextrose into the amnion on the hatchability, growth performance and slaughter yield of ross 308 broiler chicks. fertile eggs (n=360) were assigned to 6 treatment groups (4 replicates of 15 eggs each) including: non-injected eggs (control), and eggs injected with 0.7 ml distilled water (sham), ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید